Expired, full termArchive
Radiating coaxial cable having apertures spaced at a distance considerably larger than a wavelength
US 4,366,457 A · Assignee: Kabel- u. Metallwerke Gutehoffnungshutte AG · Inventors: Bode; Udo et al.
Overview
The published document from the USPTO: abstract, claims, description and drawings. Open it full size
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Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed February 4, 1981 and granted December 28, 1982. A patent filed before June 8, 1995 lasts 17 years from grant or 20 from filing, whichever is longer, so its term ended February 4, 2001.
- Any extension is capped at five years, so it can't still be in force.
- We haven't checked its US family, and a later related patent could still be in force. We check US rights only.
FiledFebruary 4, 1981
GrantedDecember 28, 1982
Term endedFebruary 4, 2001
Application number06/231313
Classification (CPC)H01Q13/203
Length4 pages
Timeline
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Sources & verification
Official USPTO records
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Everything on this page comes from the USPTO record linked above.